MutableLiveData
public
class
MutableLiveData
extends LiveData<T>
java.lang.Object | ||
↳ | androidx.lifecycle.LiveData<T> | |
↳ | androidx.lifecycle.MutableLiveData<T> |
LiveData
which publicly exposes setValue(T)
and postValue(T)
method.
Summary
Public constructors | |
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MutableLiveData(T value)
Creates a MutableLiveData initialized with the given |
|
MutableLiveData()
Creates a MutableLiveData with no value assigned to it. |
Public methods | |
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void
|
postValue(T value)
Posts a task to a main thread to set the given value. |
void
|
setValue(T value)
Sets the value. |
Inherited methods | |
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Public constructors
MutableLiveData
public MutableLiveData (T value)
Creates a MutableLiveData initialized with the given value
.
Parameters | |
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value |
T : initial value
|
MutableLiveData
public MutableLiveData ()
Creates a MutableLiveData with no value assigned to it.
Public methods
postValue
public void postValue (T value)
Posts a task to a main thread to set the given value. So if you have a following code executed in the main thread:
liveData.postValue("a"); liveData.setValue("b");The value "b" would be set at first and later the main thread would override it with the value "a".
If you called this method multiple times before a main thread executed a posted task, only the last value would be dispatched.
Parameters | |
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value |
T : The new value
|
setValue
public void setValue (T value)
Sets the value. If there are active observers, the value will be dispatched to them.
This method must be called from the main thread. If you need set a value from a background
thread, you can use postValue(Object)
Parameters | |
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value |
T : The new value
|